A month after making history as the first mother to breastfeed in Australia’s Federal Parliament, Australian Greens Senator Larissa Waters again broke barriers on Thursday by breastfeeding her 3-month-old daughter while delivering a motion relating to black lung disease in the Senate.

“First time I’ve had to move a Senate motion while breastfeeding,” wrote Waters on Twitter. “And my partner in crime moved her own motion just before mine, bless her.”

Three-month-old Alia Joy has reportedly become a Parliament regular since Waters returned from maternity leave in March, but historically Joy’s presence alongside her mother in the chamber is pioneering. During an infamous incident in 2009, a 2-year-old girl belonging to fellow Greens party member Sarah Hanson-Young was taken from the arms of her mother and ejected from the Senate. Just last year, Waters helped lead the push to change Parliament rules to allow new mothers and fathers to briefly care for their young infants while in parliament.

Though most of the reaction to the images of Waters breastfeeding were supportive, not everyone is in favor of change. On Twitter, Waters shared one particularly hateful text message she received in which the sender told Waters she would be “remembered in Politics as the dumb Bitch with the big tits.”